Tremichnus paraboloides Brett, 1985

Diagnosis: Pits, circular, regularly and smoothly parabolic in cross section; about as deep as wide (depth/diameter ratio: 0.9); ranging in size from 0.1-3.6 mm in diameter (X = 0.95 mm, SD = 0.65, N = 529 pits); up to 100 pits of varying size may occur on a single calyx. Pit apertures sharply demarcated, flush; never beveled or surrounded by a raised rim or gall-like outgrowth, pits rarely associated with vague swelling of the underlying stereom; pits frequently intersecting at borders.